Smithsonian National Postal Museum, Washington, D.C.

Astronomers have observed circumstellar disks as well as planets in orbits around stars other than the Sun before, but never a planet being assembled in a circumstellar disk. The direct imaging of ...

A mysterious celestial body speeding through the solar system and shedding metals was captured in July by the Very Large Telescope in Chile, one of five developed by NASA to detect objects that might ...

The discovery is pushing researchers to rethink how the sun’s outer layers behave and how energy moves through its atmosphere.

CAPE CANAVERAL, Fla. (AP) — Scientists have uncovered new types of organics in icy geysers spouting from Saturn’s moon Enceladus, bolstering the likelihood that the ocean world may harbor conditions ...

Hydrogen, the element that powers stars, could also fuel our cars, homes, and industries. Clean, energy-dense, and versatile, it may be key to a carbon-free future.

On this month’s episode of The Sky Above, host Leah Pezzetti discusses upcoming astronomical events and also the race to space.

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can absolutely solve.” ...

A moderate geomagnetic storm watch was issued on Wednesday after holes appeared on the sun. Geomagnetic storms are disturbances in Earth’s magnetic field caused by charged particles from the sun, such ...

These so-called Venus co-orbital asteroids are currently undetected because of their alignment in the sky but could one day drift into Earth’s path, at least according to simulations combining ...

This meteor shower is noted for its bright, fast meteors that leave trails that can linger in the sky for a few minutes.

In spectacularly good timing a coronal mass ejection (CME) from the Sun is about to collide with an object which came from outside of the Solar System. On July 1, 2025, astronomers spotted an object ...